A Partnership of Detailed Design & Innovation Wednesday 12 th October 2011

Derby City Council Street Lighting PFI Scope, Lighting Solution, Our Challenge, How was it achieved, –Innovation, –Partnership.

Scope Started in June 2007, 5 Year CIP / 25 Yr Planned & Reactive Maintenance, 26,200 columns, –18,500 in CIP, –5,700 Deemed to Comply, –2,000 Temporary Deemed to Comply.

Lighting Solution White light solution in residential areas, –S3 High Crime, –S4 in all other areas, High pressure Sodium on traffic routes, High Uniformity, Our selected white light source was the CosmoPolis lamp.

Our Challenge? Balance between cost effectiveness and compliance, –Maximise spacing with good uniformity, Standard optic wouldnt deliver compliance within budget,

How was it achieved? Recognised the relationship between the lamp and the optic, Re-engineer the standard optic, –R60, –K2, –VX, A partnering approach between Philips and Balfour Beatty.